<?php

declare(strict_types=1);

namespace App\Filament\Widgets;

use App\Models\Visit;
use Filament\Widgets\StatsOverviewWidget as BaseWidget;
use Filament\Widgets\StatsOverviewWidget\Stat;
use Livewire\Attributes\On;

class VisitStatsWidget extends BaseWidget
{
    public ?string $fromDate    = null;
    public ?string $toDate      = null;
    public ?int    $doctor      = null;
    public ?int    $treatment   = null;
    public ?int    $paymentType = null;

    public function mount(): void
    {
        $this->fromDate = now()->toDateString();
        $this->toDate   = now()->toDateString();
    }

    #[On('visit-stats-updated')]
    public function updateStats(
        ?string $fromDate,
        ?string $toDate,
        ?int $doctor,
        ?int $treatment,
        ?int $paymentType,
    ): void {
        if (! $fromDate && ! $toDate) {
            $this->fromDate = now()->toDateString();
            $this->toDate   = null;
        } else {
            $this->fromDate = $fromDate;
            $this->toDate   = $toDate;
        }
        $this->doctor      = $doctor;
        $this->treatment   = $treatment;
        $this->paymentType = $paymentType;
    }

    protected function buildQuery()
    {
        $query = Visit::query();

        if ($this->fromDate) {
            $query->whereDate('visit_date', '>=', $this->fromDate);
        }

        if ($this->toDate) {
            $query->whereDate('visit_date', '<=', $this->toDate);
        }

        if ($this->doctor) {
            $query->where('doctor', $this->doctor);
        }

        if ($this->treatment) {
            $query->where('treatment', $this->treatment);
        }

        if ($this->paymentType) {
            $query->where('payment_type', $this->paymentType);
        }

        return $query;
    }

    protected function getStats(): array
    {
        $query = $this->buildQuery();

        $totalPaid     = (int) (clone $query)->sum('paid_amount');
        $totalCost     = (int) (clone $query)->sum('treatment_cost');
        $totalRemained = $totalCost - $totalPaid;

        $currency = __('visits.fields.currency');

        return [
            Stat::make(__('visits.fields.paid_amount'), number_format($totalPaid) . ' ' . $currency)
                ->color('success')
                ->icon('heroicon-o-banknotes'),

            Stat::make(__('visits.fields.treatment_cost'), number_format($totalCost) . ' ' . $currency)
                ->color('info')
                ->icon('heroicon-o-clipboard-document-list'),

            Stat::make(__('visits.fields.remained_amount'), number_format($totalRemained) . ' ' . $currency)
                ->color($totalRemained > 0 ? 'danger' : 'success')
                ->icon('heroicon-o-arrow-trending-down'),
        ];
    }
}